Controlling means for carbide feeders



'- April 23, 1929. E. H SMITH 7 CONTROLLING MEANS FOR CARBIDE FEEDERS' Filed 0012.2, 1922 2 Sheets-Sheet 1 ifw w April 23, 1929. v s 1,709,885

CONTROLLING MEANS FOR CARBIDE FEEDERS Filed Oct. 2. 1922 2 Sheets-Sheet 2 "HI?! .IHI. A -1 HIV Ina/6711 07" ELMER hfJM/TH 147" TOE NE Y5 20 33 of Figure 1.

I r e r Fatentetl Apr. 23, 1929. 7 E9 entree stares ears ar orricsfy Eritrean. SMITH, or MIrINEA'PoLrs, hammer CONTROLLING MEANS iron CARBIDE rnnnnas.

Application filed October 2, 1922. Serial No. 591,995.

The object of my-invention is to provide the pressure of the gas rises above a premeans for automatically controlling the feed determined point, say 10 pounds, th e'Bourof carbide to an acetylene generator to the don tube will be partially straightened,

' end that the mechanism will be. automatraising the rod 10 and moving the friction ically checked when pressure of the gas disc into, engagement with the disc 9, and

reaches a predetermined point, and resumed checking the movement of the train of gears when. the pressure falls below a predeter and the feed ofthe carbide. As soon as the mined point; pressure falls, the spring '13will disengage The invention consists generally in various the friction. disc and ,allowthe movement of 65 constructions and combinations all as here the motor to be resumed. f

rafter described and pointed out in the I prefer also to provide a rod 18 mounted claims. to slide in guides in the motor frame and.-

, In the accompanying drawings forming connected with the second. Bourdontube 19 part of this specification, and having a pair of frictiondiscs and? 5 Figure 1 is a vertical sectional view 21; one above, and the other below the disc 7 through a motor embodying my invention: 9 onthe governor shaft. .A spring 22 is pro- Figure 2 is a sectional view on the line Videdon. this rodl18, for normally holding 22 of-Figure 1. v the upper friction disc 20 on the governor Figure 3 is a sectional View on the line disc and preventing operation ofthetrain v v of gears, and the motor when there Iisa low I Figure 4 is a detail sectional view showing supply of gas in the generator; asforj inthe motor control mechanism. i stance, when the'coveris removed,- and it is Figure .5 is aview showing a carbide desired to do some work around th'e gen generator and its connection with a port orator without allowing the motor to run-.

25 opening into the Bourdon tubes for supplydown," or. when thecarbidesupply for-any ing gas from the generator to the tubes. reasonis exhausted.- When the supply is} In the drawing, Qrepresents the frame of renewed, and the cover replaced and itis the motor having an operating spring 3 desired tostart the machine,- then. the atmounted therein, and a train of gears 4;; the tendant; can raise thejr0d18 by the pres 30. main gear has a shaft- 5; provided .with a Sure of the finger, releasing the train of'gears blade or sweep 6 which operates to deliver. and allowing the-Inotorto feed carbide until the carbide from the feedtable to the genthe pressure rises above a certain'po'in-t, say. crating tank. These devices, however, form for instance 3pounds. At that time, the no part of my present invention and I do Bourdon tube 19 will hold the friction disc not illustrate them herein. Y v g out of engagement with the governor, disc- 7 represents a centrifugal governor shaft and allow the feed of the carbide to. be con" havinggovernors 8 thereon and connected tinned until it is automatically checked with the train of gears tofbe operatedthereeither by thefrictiondisc 16, or by the fricby; On the governor shaft, a disc 9 is set-ion disc 21 which isarrangedpreferablyat 9 cured to revolve therewith and evidently a lower: level than the disc 16, and is only inwhenever this disc .is checked against revotendedfor operation oruse in case of;failure* lution, the governor shaft and governors will. of the disc 16 to perform its functions and.

I also be stopped, and with them the train I when the pressure-of gas in the generator gears from which the feed disc or sweep is rises above a certainv degree, -say. for iu-' I operated. 1 stance, 1-5 poundsv At that point the disc.21'= A rod 10 is mounted to slide in guides 11. willfengage the -governor disc, being raised and 12 in the motor frameand normally held by the movementof the Bourdon tube 19.;

in its de ssed position by a spring 13, and andthereupon operation of thel notor and a Iiourdon tube 14; is mounted in the frame feed of the. carbide willbechecked,,until'the105 5c of themotor andconnected at one end with? ress'ure falls to a predetermined degree. the'rod 10; the oppositeend'of the tube hav- I prefer also to providea disc132 on the ing a port- 15 for communication with the governor shaft in positionfo'r being, engaged. supply in the generator. A friction disc by a friction disc 23 mounted on a screw 24 16 is mounted on the rod 10 having a suitin the frame in themotor; said screw having 0.": j

55 able surface 17 for engagement with the a finger grip 25and adapted to berevolved disc securedto the governor shaft, and when manually to engage the disc 23 w th the disc 

